Simulation Study on Temperature Field of Three-phase Enclosed Disconnector Based on Multi-physics Coupling

LIU Long; WEI Jianwei; JIANG Jinghua; HE Yongming; WANG Gang; BAI Wei

doi:10.13296/j.1001-1609.hva.2022.03.012

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Simulation Study on Temperature Field of Three-phase Enclosed Disconnector Based on Multi-physics Coupling

更新时间：2025-04-26

- Simulation Study on Temperature Field of Three-phase Enclosed Disconnector Based on Multi-physics Coupling
- High VoltageApparatus Vol. 58, Issue 3, Pages: 86-92(2022)
- 作者机构：
  
  平高集团有限公司
- 作者简介：
- 基金信息：
- DOI：10.13296/j.1001-1609.hva.2022.03.012
  CLC： TM595;TM564.1
- Published：2022
- 稿件说明：
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LIU Long, WEI Jianwei, JIANG Jinghua, et al. Simulation Study on Temperature Field of Three-phase Enclosed Disconnector Based on Multi-physics Coupling[J]. High voltageapparatus, 2022, 58(3): 86-92.
DOI：

LIU Long, WEI Jianwei, JIANG Jinghua, et al. Simulation Study on Temperature Field of Three-phase Enclosed Disconnector Based on Multi-physics Coupling[J]. High voltageapparatus, 2022, 58(3): 86-92. DOI： 10.13296/j.1001-1609.hva.2022.03.012.

摘要

126 kV GIS设备作为城市电网建设中的重要设备，需要更加小型化来降低变电站的土地使用面积，而温升是制约设备小型化的关键因素之一。文中建立126 kV GIS三相共箱型隔离开关及母线电磁-热-流耦合三维模型，通过对开关设备总体发热和散热研究，分析了三相共箱型结构不同布置方式产生的不同功率损耗，并基于温度场仿真研究得到了各零件的温升分布。该隔离开关及母线按照国标要求通过了温升型式试验。将温升仿真结果与试验结果进行对比，仿真误差小于10%，验证了仿真的准确性，为三相共箱型GIS开关设备的小型化设计提供有效的理论和技术支撑。

Abstract

As an important equipment in urban power grid construction

126 kV GIS needs to be more compact to reduce the footprint of substations. However

the temperature rise is one of the key factors restricting the compactness of the equipment. In this paper

a electromagnetic-thermal-flow coupled coupling 3D model of the 126 kV GIS threephase enclosed disconnector and bus bar is set up

the different power loss generated by different layout of threephase enclosed structure is analyzed through the study of the total heat generation and dissipation of the switcher

and the temperature rise distribution of each part is obtained by the simulation of temperature field.The disconnector and bus bar passed successfully the temperature rise type test in accordance with international standards. Throughout comparison between the simulation and calculation result of the temperature rise

the simulation error is less than 10%.The accuracy of the simulation is verified

which provides effective theoretical and technical support for compact design of three-phase enclosed GIS.

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